Reference: https://blog.csdn.net/x4636232/article/details/7177481
1. Code prompt
window → Preferences → java → Editor → Content Assist,
prompt interval: 200 milliseconds;
prompt keyword (change): ".abcdefghijklmnopqrstuvwxyz(,"
2. Shortcut keys
1. Prompt: ALT+/
2. Note: Ctrl+/ 3.
Display class attribute method: Ctrl+O
4. Find class: Ctrl+Shift+T (find java files)
5. Find class: Ctrl+Shift+R (find all file)
6. Find method reference: Ctrl+Shift+G
7. Quickly generate import: Ctrl+Shift+O
8. Format code: Ctrl+Shift+F
9. Find the path in the project where the current file is located: ALT+Shift +W
10. Navigate to a certain line of the current editor: Ctrl+L
11. Back history and forward history: Alt+←, Alt+→
12. Quickly locate a certain class, method and property at the cursor position. : F3